Calculating-machine.



A. HANTSCH.

CALCULATING MACHINE.

APPLICATION FILED JULY 31, 19127 Patented Nov. 4, 1913.

OOOO OOOOOOOOOOOO G) @6 iwi/mamas: 5

aw %1M UNITED? sratrss PAEEBE. GEE-1GB;

ARTHUR Han'rscir, or LINDEN, JERSEY.

' CALCULATING-MACHINE.

To all whom it may concern 7 =Be it known that I, Anrnon Han'rscn, a

:cit izenof the German Empire, and a resident of Linden, Union county, New Jersey, have invented certam new and usefu'i Improvements. in Calculating' Machines, of which the follo'wing is a spe'cification'.

This invention relates'to calculating ma chines and refers in particular-to improve ments in t-he setting up mechanism and the Y mechanism for operating-thetens wheels.

Thesetting'up mechanism in calculating machines generally comprises some manually operated means for setting up the multiplicand or divisor or other factor. asthe case maybe whereby'the tens wheels are properly. positioned for carrying' over the calculation from feed dr um. to feed drum. The Operation of setting up consists in moving a sliding member into a given position opposite the cipher which is to be used. Thus for instance if the calculation to be executed is 7S93 3"-, the ciphers 7, 8, 9 and 3 must'be set up in their respective columns. To this end the aforesaid sliding member, generally a projecting knob, is moved from zero into a position opposite 3 in the unit column, the adjacent knob is placed opposite 9 in the tens column, the next adjacent lmob is placed opposite 8 in the hundreds column, and so forth. The placing of the knohs or buttons or other members into th'e'i? various positions in turn operates the corresponding tens wheels as is weli known. ileretofore the members in eachv of the columns have been placed in a single row or column and con-' sequently vvery close t gether, hence mistakes in placing the knob orothcr operating member occurs frequently and is not easily seen. It should be noted that this nntmber may be moved back and forth at will, so that an accidental touch of the operator easi displaces the knob hence the tens wheel operated thereby and incorrect results follows of course. 7

One of the objects of this invention is to so arrange the tens wheel operating member, that the cipher wanted be set up by a movement in 511?, direction only and to so arrange the operating connections be-.

tween the manually operated slide member and the tens wheel actuated thereby, that the sizlde member'lslmoved a distance twice a: great as the movement of the-tens wheel.

Further, I provide a simple means for car- Specification oi LettrslPate nt.

in two-eolumns orrows=on theimember itself, hence am able tomake .thdciph'e'rs. very large and easily readable.-

Otherobjectsof the invention and consequent advantages will appear. In' the drawings illustrating V Petente 1 lov,4,1913. Application a ea m ei, 191a. Serial Ito-712322.

x 5 h 'pt r e i form ofmyi'nvention' Figure '1 isfa' plan" view of a "calculating machine embodying my invention. F g. 21s a fragmentary view showing the tens wheelope'ratuigor set up member. view showing-the construction of the set up member in elevation and the means fora-op crating the tens wheel. Fig. a similar View with parts omitted. Fig. 5' is a righthand end view of Fig; 3. Fig. 6 is a plan view of the set up member. Fig. 7 is a per spective view of a bracket used'in the construction illustrated. F ig'. 8 is a detail view of the tens wheel and its actuating fork;

In the drawings the reference numeral 1 represents the framework of the machine.

2 is the slide rule. 3 and 4 the cover plates. 1 5 is the feed drum and 6, thetens wheel. There is a set-ting up mechanism for each Fig. 3 is a transverse sectional To this end the tens wheel- 8 designates a sliding member provided with a rack 9 and whi.

4 n. hnrn engages l carries a furl: it the tens wheel (3, F1 8.

sliding member is supported and in a bracket ll, as best seen in Fig. 5, and journalcd in two adjacent brackets 11 is a shaft 12 to which is secured two gears 13 and 14. The latter is twice the diameter of the former. Gear 13 meshes with rack 9 and gear 14 is in engagement with another rack 15 which is part of the finger slide 1, which is formed as a fork of which the said rack 15 forms the lower br2nchbelow the plate 3-while the slide 1'? forms the upper branch-above the plate 3. The slide and the rack are joined at 18.

The. inside shoulder 19 forms a stop which abuts the front edge 20 of the plate 3 when the slide is in neutial position. The rack 15 is' guided in ways 21 suitably formed on the underside of the plate 3. spring 22 tends to keep'the slide in zero orrneutral position, which is as shown in Figsnl, 2 and 3. The upper face '23 of the rack 9 is provided with numbers from- 0 to -9 which appear through the aperture 28 in the plate 3' as the numbers are set up. Thes'li twofcolumn pieces. 2etand whichtogether o'carry numbers from'O to 9, alternating the even numbers on theone column and the uneven' numbers Orr the other column. The slide members are impressed on inclined "surfaces :26 between suitable finger stops 27. 5 28 is a pawl which ispivoted on a suit able bearing 291' securedto'the cover '1 and keptjinlengagementwiththe gear 13 by a ,sp'ring-30. "3l isafpush member having a .Ibutt'on .32; I When the latter is pressed down g ftheapavvlis:d-isengaged from the gear 13. All -the. pawls'31, one for each setting up rnechanism,' mayffbe lifted out of engagimentwith the gears 13 by means of t shaft 33,.which .is flattened where the pawls Q 'Qpass over it as;. sho\ v.n at -The shaft 33 extendsao'ros's" the machine; as seen in Fig. .1. and is rotated or operatedby .a' push button '35v connected to-the shaft by a crank farm 36 in a: well known manner. '3 1.. Normally thesettingup mechanism is in the posit'ion shown in Figs, 1 to 3. lVhen it 1 is desired to set up a 'multiplicand as for Q-f-insltance 7893 the operator puts his fore- 'fing'er on cipher 3 on the slide 16 in-tlie 3 51 11Ii1tj column 40, Fig}, and pulls back the .i' 'slide '16 until his finger touches the rear fedge 145 ,ofj'theicover 4,.and the cipher 3 willappearin'upit column aperture28 Next [theoperator uts his finger on the cipher .'9""on the slide 16 in the tens cOlumn 41 and pulls that back-and then repeats the operation for the hundreds column 42 and the th 0 usands column 43. J By means of the above described construction it follows that 45'as'the'slides 16 are pulled .frontward, to-

ward the operator, the res ective tens wheels have been moved rearwar into their roper positions to be engaged by the-'feedd and-as shown for instance in Fig. 4. If an error is made, which'can readily. be detected through the apertures 28, the operator cor rects the set up by pushing the button 32. Or if all the set ups are erroneous they may be canceled by operating the push 5 button 35. The advantages of this construction are quite obvious. The operator is able to set up the number wanted by comparatively long quick strokes of the sliding member by a natural movement toward him. so The movement is certain and sure as no, matter which figure is to be set up the novement is always stopped by the edge of the cover 4 and the pawl 28' in cooperation with the rack prevents a movement of an incom- 5 plete length. Another advantage is ob e16 is formed intorums,

tained by having the two gears, one twice the size of the other, as thereby the opera tor. pulls the slide twice the distance of the movement of the tens wheel, hence can operate with greater certainty and also the numbers on the slide can be made larger. After the operation of the setting mecha- "nism, the crank 50 and slide 2 are operated in the usual manner in calculating machines of the type disclosed in British Patent Number 13504 of 1851. If the operator is an expert the setting up of the numbers can be done very'quickly in that the finger stops 27 form means for guiding thetips of the fingers hence the operator can use several fingers at once with the touch method and need hardly look at the figures on the-finger Slides, and-after the desired number has been set up, the figures on the rack 15 clearly indic'ate whether or not the operation has been coirect as each figure may be seen at a glance through the apertures or windows 28 in the cover plate.

Details in the construction set forth may of course be varied within the principle of the invention and the scope of the claims. I claim 1. In a setting up mechanism for calculating machines, the combination of a cover plate, a tens wheel, a finger slide movably supported on said cover plate for operating said tens wheel, said finger slide comprising a member provided witlrthenumbers 0-9 below the said cover plate but adapted to appear through a window in the same, said finger slide being arranged to be moved manually in onedirection and to be stopped always at the same given point irrespective of the length of the movement of said slide as indicated by the number appearing through said window in the cover.

2. In a set-ting up mechanism forcalculating machines thecombination of a fixed support, a tens wheel, a finger slide for operatin the same and movably supported on the said fixed support, said finger slide being provided with a set of exposed numbers 0 9 arranged in two columns and a second set of numbers 0-9 below the said fixed support but adapted to appear single through window in the latter to indicate the position of the Said tens wheel when the' said finger slides is operated' r 3. In a setting up mechanism for calculat ing machines, the combination of a tens wheel, arack operatively connected to the latter, a rotatable shaft, a gear on the latter in mesh with the said rack and a finger slide for operating said gear and rack to cause an axial movement of said tens wheel.

4. In a setting up mechanism for calculating machines, the combination of a tens wheel, a'rack operatively connected to the same, a shaft, a gear on said shaft in mesh with the said r .ck, a second gear on said shaft, a finger slide having a rack in mesh with said second gear,-wh1eh latter 1s of a greater diameter than the, first named gear whereby when said SlidlSfIllOYGd a given; distance, the said tens-,Wheel is moved axi-g' l ally a. less distance to place the same a g ven position.

cc'eding numerals, the lowerbran'eli bearing A finger slideifor Settin'gbpxthefrd: uctnumerals incalculating machines comprising alforkedv member, then-ppe'r branch. r of said fo rked member bearing the numerals 09 arranged in two columns; the lower branch '01; s'a dforked member bearing the numerals 09 arranged ina single column;

.tif-ijeh finger slidefor setting. up "the prod-i net-members in calculating maehinesficom f prising afforked member, the upper branch of said member bearing the numerals-p 9 arranged in .a doublecolumn' and'lhaving finger stops placed between each fltwdsucthe numbers 0 9 arranged ina single column- 7. A finger slide forsettin gupthe product numerals in calculating machines oom prising a single member formingnnupper and a lower branch; the, upper 'bralieh being slotted and bearing the numerjal s*0 9 ai-rnng'edin two columns; the even numbers sueceedin said IIIQIIIlJEI" bearing the numbers O9 arp ate having a window, a finger-glide mounted to slide on said covel plate'and having one set of exposed numbers 0-9 and formed Copies of this patent may be obtained for with finger stops betnfeen'eachftwo suceee d ing' numeralsifor, operat nig said slide-,-"ithe.

latter having ianother set of numbers. 0-9

whereby, when-said lingerislide i s moved a' I distance-5 determined by the pOSllZlOl'l of a givenone of the 'exposedmembeis the said tensfwheelfisfl moved into a corresponding through said window and corresponding to bers.

wheel .ina given .QSitiOn, Operating c0nneethe saidgiven number of the-exposed lllllflr 'na settingup" mechan sm for-calculate .i ng;'ma'chine's the .eombina-tion of e atens l wheeh a-finger slide adapted to be operated:

f manually in oljiewdirection to place saidltens 3 so."

a secondrackinfioperatiiie engagement with the saidfitens gearsinterposed between-531diaCkS-hllld, in engagement with) both "of :them', apawl'in engagement with one-of the saidgears a push button for disengaging.said-"pawt glOlll the said one geat and means *for antw/ttically moving the said fingerfslide in the opposite direction to place the said'tens wheel in zero position when the said push button is op- H te o f'July 1912. 4 ARTHUR HANTSOH.

WVitnesses: l

IVAN KoNIosBEuo K. Ln Conn.

flve cen ts'each, by addressing the Commissioner of Patents. Washington, D. G."

Signedfat New York, N} Y., this 20'? day .50 given ipositionlindicated by the appearance ofron'e of themembers below the cover plate- 

